APA aipamena

 Hartmann, P. (2009).  Interactions 2: Reading.  McGraw-Hill.

Chicago Style aipamena

 Hartmann, Pamela.  Interactions 2: Reading.  McGraw-Hill, 2009.

MLA aipamena

 Hartmann, Pamela.  Interactions 2: Reading.  McGraw-Hill, 2009.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.